package cn.leftsite.juc.producerandconsumer;

import java.util.Random;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * @author wangjinqiang
 * @date 2019-06-06
 */
public class Producer implements Runnable {
    private volatile boolean isRunning = true;
    /**
     * 内容缓冲区
     */
    private final BlockingQueue<PCData> queue;

    /**
     * 总数，原子操作
     */
    private static final AtomicInteger count = new AtomicInteger();

    private static final int SLEEPTIME = 1000;

    public Producer(BlockingQueue<PCData> queue) {
        this.queue = queue;
    }

    @Override
    public void run() {
        PCData data = null;
        Random r = new Random();
        System.out.println("start producer id = " + Thread.currentThread().getId());

        try{
            while (isRunning){
                Thread.sleep(r.nextInt(SLEEPTIME));
                // 构造任务数据
                data = new PCData(count.incrementAndGet());
                System.out.println(data + " is put into queue");
                // 提交数据到缓冲区
                if (!queue.offer(data, 2, TimeUnit.SECONDS)){
                    System.out.println("failed to put data: " + data);
                }
            }

        }catch (InterruptedException e){
            e.printStackTrace();
            Thread.currentThread().interrupt();
        }
    }

    public void stop(){
        isRunning = false;
    }
}
